Earth System and Major Themes Quiz
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Questions and Answers

What powers the Earth system according to the text?

  • Wind energy and tidal energy
  • Radioactive decay and gravitational energy (correct)
  • Geothermal energy
  • Solar energy only

    • Which subsystem includes all life forms on Earth?

  • Geosphere
  • Hydrosphere
  • Lithosphere
  • Biosphere (correct)

    • What percentage of Earth's water is fresh according to the text?

  • 10%
  • 50%
  • 3% (correct)
  • 75%

    • In what form does much of the Earth's water exist?

    <p>Solid ice</p> Signup and view all the answers

    What is a closed system based on the text?

    <p>A system with no exchange of matter but only heat or energy</p> Signup and view all the answers

    Which theme emphasizes the different length and time scales of processes in the Earth system?

    <p>Scale</p> Signup and view all the answers

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